Bogie for railway cars and the like



c. A. svEN'ssoN BOGIE FdR RAILWAY CARS AND THE LIKE Filed/April 26. 1927 avweu to:

Patented Aug. 30,1927. j I i V 1,640,626

UNITED STATES PATENT OFFICE.

Application filed Apri126, 1927, Serial No. 186,665, and in Sweden May 3, 1926.

In bogies for railway cars and like ve- The mounting and manner of operation 40 hicles having side beams, especially beams of the device are as follows :After the spring placed in members suspended from and 4 has been compressed and placed in posiunder the axle journal, it is ofimportance, tion on the spring beam, the nut 16 is 5 for the sake of traflic safety, to prevent unscrewed andthe safety washer placed beams, spring washers and springs etc. from in position .in the recess 21 of the spring falling down onto the track, in case any of. holder 1. The safety washer cannot be the abovementioned suspension details should placed on'the bolt 12 by compression of the break. spring, because then itwould not be possible 10 This invention relates to safety devices to introduce the spring from below through provided for such purpose. Its principal the spring holder.

features are that a nut provided with a In case offailure of the spring beam, this flange and screwed on to, the bolt bears on has a possibility of falling down a short disa safety washer preferably placed in a retanoe corresponding to the play which, for

15 cess in the spring fastening and that the edge the normal spring action, exists between the of the bottom washer .ca'rrying the spring bolt head 14 and the bottom of the lower fits in a recess in the spring beam, whereby spring washer 7. In such case this spring the bolt, in case of rupture of the spring Washer will come to bear against the upper beam, can carry the members suspended bearing surface of the recess 23 in the spring 20 below. beam, and the flange 22 of the nut 16 will In the drawing, I have shown a section of bear against the safety washer 20. The 0 the spring beam through the opening receivbolt 12 will then be loaded and carries the ing the spring. ,parts suspended below it.

Referring to the drawing, the device I claim: K

25 shown is similar to that described in my In bogies for railway cars and the like,

co-pending patent application, Serial Numthe combination of a spring, a spring holder, her 122,7 48, filed July 16, 1926, but it differs a washer placed in a recess in the said spring from the same principally in that the spring holder, a bolt serving to compress the said holder 1 carries a washer 2O suitablyplaced spring, a nut screwed on to the said bolt,

30 in a recess 21 in the said spring holder. said nut having a flange bearing on the said This washer serves to prevent accidentsin washer, and a bottom washer supporting the case the spring beam 3 should happen to spring and fitting with its edge in the beam, break, since in such case the washer will substantially as and for the purpose set support the nut 16 having' a flange 22. forth. i

5 Moreover, the bottom washer 7 supporting In testimony whereof I have signed my the spring 4 fits with its edge in an inner name. recess 23 in the spring beam. The result will be an efficient safety device preventing CARL ALFRED SVENSSON.

the parts from falling down on the track. 

